Ms Gumbley may have had a heart attack, police said (Picture: Cover Asia Press)

‘The travel guide accompanying her said she’d been complaining of feeling unwell for the last three days but she had permission from her doctor in UK to travel,’ said Kaptan Singh, 40, Station House Officer at Amer Police station.

‘The post-mortem will help us understand the real cause of death but we suspect she died of a heart attack’.

Ms Gumbley had been staying at the Taj Rambagh Hotel since 5 February but checked out on Tuesday, the day she died.